APA Style

Erna Fitriana, Ratih Sumirating Ratri. (). . : .

Chicago Style

Erna Fitriana, Ratih Sumirating Ratri. . : , . .

MLA Style

Erna Fitriana, Ratih Sumirating Ratri. . : , . .

Turabian Style

Erna Fitriana, Ratih Sumirating Ratri. . : , . .